/**
 * @file hello.cpp
 * @author EbolaEmperor (ebola@zju.edu.cn)
 * @brief Just a stupid code.
 * @version 0.1
 * @date 2021-09-20
 * 
 * @copyright Copyright (c) 2021
 * 
 */

#include<iostream>

using namespace std;

int main(){
    cout << "Hello World!" << endl;
    return 0;
}